The organization that holds the Miss Universe beauty pageant hosts an annual costume competition. It really is more costume than cosplay—that is, dressing up as concepts rather than as characters. But Erin Brady, Miss USA

[USA! USA! USA!]

dressed up as a classic American hero: Optimus Prime.* You can see photos of her and other competitors here.

*Yes, I know that Optimus Prime was built on Cybertron. But we are a nation of immigrants and Mr. Prime is one of them.